<!DOCTYPE html>
<html>

	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>

	<body>
	</body>
	<script type="text/javascript">
		var now = (new Date()).valueOf();
		console.log(now)
		now = now * 1 + 60 * 60 * 24 * 5
		//	     var getnewday = new Date(parseInt(now)*1000).format('yyyy年M月d日')
		//	     console.log(getnewday)
		
		Date.prototype.format = function(fmt) { //author: meizz
			var o = {
				"M+": this.getMonth() + 1, //月份  
				"d+": this.getDate(), //日
				"h+": this.getHours(), //小时
				"m+": this.getMinutes(), //分
				"s+": this.getSeconds(), //秒
				"q+": Math.floor((this.getMonth() + 3) / 3), //季度
				"S": this.getMilliseconds() //毫秒
			};
			if(/(y+)/.test(fmt)) fmt = fmt.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
			for(var k in o)
				if(new RegExp("(" + k + ")").test(fmt))
					fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
			return fmt;
		}
		var time = new Date(parseInt(1420184730) * 1000).format('yyyy年M月d日');
		console.log(time); //输出："2015年1月2日"
	</script>

</html>